US1433240A

US1433240A - Brake head and shoe

Info

Publication number: US1433240A
Application number: US487963A
Authority: US
Inventors: George L Scott
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-01-03
Filing date: 1921-07-27
Publication date: 1922-10-24
Anticipated expiration: 1939-10-24

Description

G.- L. SCOTT.

BRAKE HEAD AND SHOE. APPLICATION FILED JULY 21. 921.

Wanted 001124 1922,

,raieaiea on. at, ieaa,

enchant. score; or srrewnnia, OKLAHOMA;

BRAKE HEAD AND srron.

1 wori inar application filed railwa a, 1e20, Serial No. etaise. Divided and this application filed. July 27,

lObralre head and shoe, being a division of my application for car brake, filed January 3,1920, Serial No. 849,182, now Patent No. 1,397,059, and seeks, among other objects, toprovide a construction wherein the brake shoe will be firmly looked upon the head but wherein. said shoe may be readily removed so that the shoe can be easily renewed. Other and incidental objects will appear hereinafter. i

In the drawing: 1 1 Figure 1 is a detail elevation showing the brake head and shoein connection with a hanger therefor as exemplified my patent referred to.

Figure 2 is a detail perspective view of the brake head and shoe as well as the hanger, the shoe being detached from the head, and y Figure 3 is a longitudinal sectional view taken through the brake head. and shoe.

Referring now more particularly to the drawing, 1 have, in order to clearly bring out themounting and operation of my im proved brake head and shoe,shown the invention in connection with associated parts of a car brake, as illustrated in my patent previously identified. it car aXle is illustrated at 10 and the wheel at theadjacent 4,0 endof the axle at 11. Journaling the axle is a journal box 12- to which is connected one of the bars 13 of the side frame. Secured tosaid baris a hanger bracket 14 upon which is pivoted a brake hanger l5 normally held elevated by a spring 16 and connected with the hanger is a chain 17 by which the hanger may be swung downward 1y, it being observedin this connection that the hanger extends over the wheel 11. All )bfthisstructure is disclosed insiny Patent No. 1,397,059 and. accordingly described only generally herein.

In carrying out the presentinvention, ll employ a brake head 86. As shown in Figure 2, the outer end of the hanger is squared 1921, Serial No. 487,963.

end. of thehanger and is secured by a cotter pin or other appropriate means. Adjacent one end thereof, the brake head is formed with a transverse opening 27 and entering through the lower face of the head to intersect this opening is a recess 38. Formed in the head at its oppos te end andthe brake head fitted over the squared is a longitudinally extending recess 39 entering through the adjacent end wall of the head. Fitting the curved lower side of the head is'a brake shoe 40 provided at its ends with upstanding flanges d1 adapted to coact with theend walls of the head. At one end thereof, the shoe is provided with an upstanding longitudinally directed hook 4:52 which engages in the recess 39, the shank of the hook being received in suitable notches in the adjacent end wall of the head, and upstanding from the shoe near its opposite end is a staple 13 which is received within the recess 38. Extending through. the opening 37 to be received through the staple 13 is a bolt 44 looking theshoe upon the bean, the shoe being rigidly held in position at one end thereof by the hook 12 and at its opposite end by the staple 48. At the same time, the shoe maybe readily detached by simply removing the bolt 44-. The shoe is, of course, curved to conform to the curvature of the wheel 11 and is arranged to engage said wheel at its upper side, being normally supported out of contact with the wheel by the hanger 15. Formed on the brake head atits inner end is a pair of cars 15 and pivoted at its outer end between said cars is a thrust rod 16, the inner end of which is rigidly connected with the truclr frame. The rod 46 will thus serve to brace the brake head against longitudinal movement under the influence of the drag of the wheel 11 upon the brake shoe.

Having thus described the invention, what isclaiined as new is:

1. In brake mechanism, a brake head provided with a transverse opening there through and having a recess entering through the lower face of the head to intersect said opening, thehead being further provided at one end with a longitudinal re ccss, a brake shoe seating against the lower face of the head, a hook carried by one end portion of the shoe engaging in the latter recess, a staple carried by the opposite end portion of the shoe received in the first recess, and means extending through said opening and through the staple locking the shoe upon the head.

2. In brake mechanism, brake head having spaced recesses, a brake shoe having spaced means extending into said recesses, one of said means coasting with the head for connecting the shoe thereto, and means eX- tending through the head eoaeting with another of the first means locking the shoe upon the head.

3. In brake mechanism, a brake head having recesses one extending longitudinally oi the head, and a brake shoe seating against the head and provided with means engaging in said longitudinally extending recess and with other means received in the other of said recesses in the head, and means ere tending through the head coacting with the latter means of the shoe for locking the shoe upon the head.

4:. In brake mechanism, a brake head provided with recesses one entering through one end face of the head and the other entering through a longitudinal face of the head, a brake shoe having a hook engaging in the first recess and provided with a staple received in a second recess, and means extending through the head and said staple locking the shoe upon the head.

5. In brake mechanism, a brake head provided with recesses one entering through an end face of the head and the other through a longitudinal face of the head, a brake shoe I GEORGE L. SCOTT.